A set of keys is in the library.You can___the teacher for it.
Vegetables are good our health, so we should eat them every day.
— do you go to the movies? —Hardly ever.
If you eat chocolate, maybe you’ll be fatter(更胖的).
— You look tired, you should have a good rest for _______ days. — That sounds good.
—______are you staying there? —Just for two days.